package com.example;

import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;

import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;

// 映射地址
@WebServlet("/hello2")
public class HelloServlet2 extends HttpServlet {

    @Override
    protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {

        // 域对象
        // ServletContext
        // Session
        // Request
        // Page
        req.setAttribute("username","zhangsan");

        // 请求转发hello2.jsp
        req.getRequestDispatcher("/WEB-INF/jsp/hello2.jsp").forward(req,resp);

        // 重定向
        //response.sendRedirect
    }



}
